Current medical research and opinion · 2017
Cardiovascular event incidence and cost in type 2 diabetes mellitus: a Medicare claims-based actuarial analysis.
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Fitch Kathryn, Engel Tyler, Sander Stephen, Kuti Effie, Blumen Helen
Аннотация
OBJECTIVE: To assess the economic burden of cardiovascular events in Medicare beneficiaries with type 2 diabetes mellitus (T2DM).
METHODS: This claims-based actuarial analysis queried 2013 and 2014 Medicare 5% samples, defining a denominator of fee-for-service beneficiaries. Average per patient per month allowed cost ($PPPM) was calculated for T2DM, demographically adjusted non-T2DM, and denominator. Per member per month allowed cost ($PMPM) was calculated by dividing total population cost by member months in the denominator. Costs of five pre-specified cardiovascular events were calculated as a contribution to denominator $PMPM, as contribution to $PPPM in T2DM, and as incremental cost.
RESULTS: During the study period, 22.1% of Medicare fee-for-service beneficiaries had T2DM; of these, 9.68% experienced a cardiovascular event or cardiovascular-related death. T2DM cost represented 37.9% of total allowed $PMPM for the denominator. Average total allowed $PPPM for a T2DM beneficiary was $1,834, compared with $850 for a non-T2DM beneficiary (2.2-times higher). Annual rates of myocardial infarction, stroke, unstable angina admission, heart failure admission, and coronary revascularization in T2DM were 3.3-, 2.4-, 3.2-, 4.0-, and 2.8-times higher than in non-T2DM, and utilization of health services was also greater in T2DM. Cardiovascular events in T2DM accounted for 50% of denominator cardiovascular event cost; 3.6% of denominator population $PMPM was attributable to cardiovascular events in T2DM. Risk-adjusted incremental cardiovascular event cost represented 18.1% of $PPPM in T2DM or 6.9% of $PMPM in the denominator population.
CONCLUSIONS: Cardiovascular events in Medicare fee-for-service beneficiaries with T2DM contribute substantially to Medicare cardiovascular events, resource utilization, and cost.
METHODS: This claims-based actuarial analysis queried 2013 and 2014 Medicare 5% samples, defining a denominator of fee-for-service beneficiaries. Average per patient per month allowed cost ($PPPM) was calculated for T2DM, demographically adjusted non-T2DM, and denominator. Per member per month allowed cost ($PMPM) was calculated by dividing total population cost by member months in the denominator. Costs of five pre-specified cardiovascular events were calculated as a contribution to denominator $PMPM, as contribution to $PPPM in T2DM, and as incremental cost.
RESULTS: During the study period, 22.1% of Medicare fee-for-service beneficiaries had T2DM; of these, 9.68% experienced a cardiovascular event or cardiovascular-related death. T2DM cost represented 37.9% of total allowed $PMPM for the denominator. Average total allowed $PPPM for a T2DM beneficiary was $1,834, compared with $850 for a non-T2DM beneficiary (2.2-times higher). Annual rates of myocardial infarction, stroke, unstable angina admission, heart failure admission, and coronary revascularization in T2DM were 3.3-, 2.4-, 3.2-, 4.0-, and 2.8-times higher than in non-T2DM, and utilization of health services was also greater in T2DM. Cardiovascular events in T2DM accounted for 50% of denominator cardiovascular event cost; 3.6% of denominator population $PMPM was attributable to cardiovascular events in T2DM. Risk-adjusted incremental cardiovascular event cost represented 18.1% of $PPPM in T2DM or 6.9% of $PMPM in the denominator population.
CONCLUSIONS: Cardiovascular events in Medicare fee-for-service beneficiaries with T2DM contribute substantially to Medicare cardiovascular events, resource utilization, and cost.